Writing instrument



FIG. 1 is a front perspective view of a writing instrument showing my new design;

FIG. 2 is an exploded front perspective view thereof;

FIG. 3 is a left side view thereof, the right side view bring a mirror image of the left side view;

FIG. 4 is a back view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a front perspective view thereof without the cap showing the pen tip and the highlighter tip partially protruding;

FIG. 9 is a front perspective view thereof without the cap showing the highlighter tip fully protruding;

FIG. 10 is a front perspective view thereof without the cap showing the pen tip; and,

FIG. 11 is an enlarged top view of FIGS. 8-10.

The broken lines shown in the figures are for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a writing instrument, as shown and described. 